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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\ActiveRecord; |
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use Throwable; |
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use Yiisoft\Db\Exception\Exception; |
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use Yiisoft\Db\Exception\InvalidArgumentException; |
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use Yiisoft\Db\Exception\InvalidConfigException; |
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use Yiisoft\Db\Schema\TableSchemaInterface; |
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use function array_diff; |
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use function array_keys; |
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use function array_map; |
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use function array_values; |
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use function get_object_vars; |
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use function in_array; |
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use function is_array; |
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use function is_string; |
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use function key; |
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use function preg_replace; |
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/** |
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* Base Active Record class which implements {@see ActiveRecordInterface} with the minimum set of methods. |
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* |
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* Active Record implements the [Active Record design pattern](https://en.wikipedia.org/wiki/Active_record). |
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* |
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* The premise behind Active Record is that an individual {@see ActiveRecord} object is associated with a specific row |
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* in a database table. The object's attributes are mapped to the columns of the corresponding table. |
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* |
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* Referencing an Active Record attribute is equivalent to accessing the corresponding table column for that record. |
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* |
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* As an example, say that the `Customer` ActiveRecord class is associated with the `customer` table. |
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* |
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* This would mean that the class's `name` attribute is automatically mapped to the `name` column in `customer` table. |
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* Thanks to Active Record, assuming the variable `$customer` is an object of type `Customer`, to get the value of the |
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* `name` column for the table row, you can use the expression `$customer->name`. |
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* |
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* In this example, Active Record is providing an object-oriented interface for accessing data stored in the database. |
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* But Active Record provides much more functionality than this. |
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* |
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* To declare an ActiveRecord class you need to extend {@see ActiveRecord} and implement the `getTableName` method: |
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* |
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* ```php |
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* class Customer extends ActiveRecord |
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* { |
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* public static function getTableName(): string |
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* { |
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* return 'customer'; |
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* } |
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* } |
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* ``` |
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* |
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* The `getTableName` method only has to return the name of the database table associated with the class. |
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* |
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* Class instances are obtained in one of two ways: |
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* |
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* Using the `new` operator to create a new, empty object. |
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* Using a method to fetch an existing record (or records) from the database. |
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* |
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* Below is an example showing some typical usage of ActiveRecord: |
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719 |
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* |
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* ```php |
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* $user = new User($db); |
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* $user->name = 'Qiang'; |
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* $user->save(); // a new row is inserted into user table |
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* |
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* // the following will retrieve the user 'CeBe' from the database |
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* $userQuery = new ActiveQuery(User::class, $db); |
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* $user = $userQuery->where(['name' => 'CeBe'])->one(); |
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* |
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* // this will get related records from orders table when relation is defined |
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* $orders = $user->orders; |
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* ``` |
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* |
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* For more details and usage information on ActiveRecord, |
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* {@see the [guide article on ActiveRecord](guide:db-active-record)} |
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*/ |
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class BaseActiveRecord extends AbstractActiveRecord |
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{ |
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public function attributes(): array |
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{ |
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return $this->getTableSchema()->getColumnNames(); |
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} |
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public function filterCondition(array $condition, array $aliases = []): array |
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{ |
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$result = []; |
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$columnNames = $this->filterValidColumnNames($aliases); |
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foreach ($condition as $key => $value) { |
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if (is_string($key) && !in_array($this->db()->getQuoter()->quoteSql($key), $columnNames, true)) { |
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throw new InvalidArgumentException( |
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'Key "' . $key . '" is not a column name and can not be used as a filter' |
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); |
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} |
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$result[$key] = is_array($value) ? array_values($value) : $value; |
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} |
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return $result; |
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} |
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public function filterValidAliases(ActiveQuery $query): array |
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{ |
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$tables = $query->getTablesUsedInFrom(); |
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$aliases = array_diff(array_keys($tables), $tables); |
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return array_map(static fn ($alias) => preg_replace('/{{([\w]+)}}/', '$1', $alias), array_values($aliases)); |
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} |
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/** |
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* Returns the schema information of the DB table associated with this AR class. |
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* |
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* @throws Exception |
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* @throws InvalidConfigException If the table for the AR class does not exist. |
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* |
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* @return TableSchemaInterface The schema information of the DB table associated with this AR class. |
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*/ |
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public function getTableSchema(): TableSchemaInterface |
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{ |
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$tableSchema = $this->db()->getSchema()->getTableSchema($this->getTableName()); |
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if ($tableSchema === null) { |
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throw new InvalidConfigException('The table does not exist: ' . $this->getTableName()); |
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} |
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return $tableSchema; |
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} |
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/** |
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* Loads default values from database table schema. |
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* |
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* You may call this method to load default values after creating a new instance: |
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* |
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* ```php |
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* // class Customer extends ActiveRecord |
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* $customer = new Customer($db); |
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* $customer->loadDefaultValues(); |
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* ``` |
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* |
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* @param bool $skipIfSet Whether existing value should be preserved. This will only set defaults for attributes |
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* that are `null`. |
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* |
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* @throws Exception |
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* @throws InvalidConfigException |
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* |
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* @return self The active record instance itself. |
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*/ |
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public function loadDefaultValues(bool $skipIfSet = true): self |
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{ |
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foreach ($this->getTableSchema()->getColumns() as $name => $column) { |
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if ($column->getDefaultValue() !== null && (!$skipIfSet || $this->getAttribute($name) === null)) { |
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$this->setAttribute($name, $column->getDefaultValue()); |
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} |
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} |
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return $this; |
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} |
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public function populateRecord(array|object $row): void |
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{ |
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$columns = $this->getTableSchema()->getColumns(); |
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/** @psalm-var array[][] $row */ |
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foreach ($row as $name => $value) { |
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if (isset($columns[$name])) { |
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$row[$name] = $columns[$name]->phpTypecast($value); |
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} |
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} |
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parent::populateRecord($row); |
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} |
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public function primaryKey(): array |
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{ |
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return $this->getTableSchema()->getPrimaryKey(); |
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} |
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/** |
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* @throws Exception |
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* @throws InvalidArgumentException |
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* @throws InvalidConfigException |
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* @throws Throwable |
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*/ |
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public function refresh(): bool |
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{ |
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$query = $this->instantiateQuery(static::class); |
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$tableName = key($query->getTablesUsedInFrom()); |
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$pk = []; |
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/** disambiguate column names in case ActiveQuery adds a JOIN */ |
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foreach ($this->getPrimaryKey(true) as $key => $value) { |
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$pk[$tableName . '.' . $key] = $value; |
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} |
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$query->where($pk); |
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return $this->refreshInternal($query->onePopulate()); |
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} |
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/** |
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* Valid column names are table column names or column names prefixed with table name or table alias. |
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* |
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* @throws Exception |
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* @throws InvalidConfigException |
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*/ |
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protected function filterValidColumnNames(array $aliases): array |
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{ |
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$columnNames = []; |
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$tableName = $this->getTableName(); |
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$quotedTableName = $this->db()->getQuoter()->quoteTableName($tableName); |
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foreach ($this->getTableSchema()->getColumnNames() as $columnName) { |
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$columnNames[] = $columnName; |
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$columnNames[] = $this->db()->getQuoter()->quoteColumnName($columnName); |
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$columnNames[] = "$tableName.$columnName"; |
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$columnNames[] = $this->db()->getQuoter()->quoteSql("$quotedTableName.[[$columnName]]"); |
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foreach ($aliases as $tableAlias) { |
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$columnNames[] = "$tableAlias.$columnName"; |
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$quotedTableAlias = $this->db()->getQuoter()->quoteTableName($tableAlias); |
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$columnNames[] = $this->db()->getQuoter()->quoteSql("$quotedTableAlias.[[$columnName]]"); |
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} |
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} |
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return $columnNames; |
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} |
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protected function getObjectVars(ActiveRecordInterface $object): array |
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{ |
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return get_object_vars($object); |
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} |
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protected function insertInternal(array $attributes = null): bool |
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{ |
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$values = $this->getDirtyAttributes($attributes); |
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$primaryKeys = $this->db()->createCommand()->insertWithReturningPks($this->getTableName(), $values); |
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if ($primaryKeys === false) { |
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return false; |
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} |
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$columns = $this->getTableSchema()->getColumns(); |
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foreach ($primaryKeys as $name => $value) { |
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$id = $columns[$name]->phpTypecast($value); |
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$this->setAttribute($name, $id); |
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$values[$name] = $id; |
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} |
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$this->setOldAttributes($values); |
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return true; |
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} |
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protected function populateAttribute(string $name, mixed $value): void |
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{ |
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$this->$name = $value; |
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} |
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} |
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